Every item I mentioned in this comment can be sold on the AH for various prices, which can be high since they are hard to get.

Good luck!

Comment by michatmaster7

You will need to loot Ishaal's Almanac to start the repeatable quest-line that ends with Adversarial Blood, which asks for you to summon and kill the four mini-bosses. This quest no longer requires collection of the four items listed in the previous post.

Note: Collect 40 Time-Lost Scrolls in order to summon your four mini-bosses, but wait to summon them until you've started the quest Adversarial Blood. The quest now requires you to KILL the mini-bosses, but no longer requires collection of these items. If you haven't started the quest yet, you'll end up with the items in your inventory, but still have to re-kill them when you DO start the quest.